20034330 has 64 divisors (see below), whose sum is σ = 51435648. Its totient is φ = 4976640.

The previous prime is 20034323. The next prime is 20034337. The reversal of 20034330 is 3343002.

It is an interprime number because it is at equal distance from previous prime (20034323) and next prime (20034337).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20034337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83010 + ... + 83250.

It is an arithmetic number, because the mean of its divisors is an integer number (803682).

Almost surely, 2^20034330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20034330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25717824).

20034330 is an abundant number, since it is smaller than the sum of its proper divisors (31401318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20034330 is a wasteful number, since it uses less digits than its factorization.

20034330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20034330 is about 4475.9725200229. The cubic root of 20034330 is about 271.5969828089.

Adding to 20034330 its reverse (3343002), we get a palindrome (23377332).

The spelling of 20034330 in words is "twenty million, thirty-four thousand, three hundred thirty".